<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>envelope</title>
    <link rel="stylesheet" href="css/base.css">
    <link rel="stylesheet" href="css/envelope.css">
    <script src="js/envelope.js"></script>
</head>

<body>
    <div class="container1">
        <div class="envelope">
            <div class="envelope-coat"></div>
            <div class="envelope-text">
                -- 点击信封签收 --
            </div>
        </div>
    </div>
</body>

</html>